We searched for“Shell-Mex vintage enamel sign petroliana”(identified as Shell-Mex, confidence: High)
Typical realised range (Gemini estimate): £200-£800
Comparables
32
Median
£367
Suggested estimate
£220 – £550
25–75% range
£215 – £836
Overall range
£18 – £12,450
Distribution
Sell-through 100% of lots sold
0% at premier salerooms
Median from 32 sold (all-time — too few recent sales)·hammer prices, excl. buyer's premium — fair-market auction value (retail/insurance replacement runs higher)